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- 1. Multiple Choice
Which of the following describes the result of executing the program?
The program displays the sum of the even integers from 0 to 10.
The program displays the sum of the even integers from 0 to 20.
The program displays the sum of the odd integers from 1 to 9.
The program displays the sum of the odd integers from 1 to 19.
- 2. Multiple Choice
Which of the following describes how a distributed denial-of-service (DDoS) attack is most likely to compromise an online store’sWeb site?
By causing incorrect information about services to be displayed
By making it difficult for the site to safeguard customer login information
By preventing customers from placing orders
By preventing the store from filling previously placed orders
- 3. Multiple Choice
A program contains the following procedures for string manipulation.
Which of the following expressions can be used to generate the string "Happy" ?
Concat (Substring ("Harp", 1, 1), Substring ("Puppy", 2, 4))
Concat (Substring ("Harp", 1, 2), Substring ("Puppy", 3, 3))
Concat (Substring ("Harp", 1, 2), Substring ("Puppy", 4, 2))
Concat (Substring ("Harp", 2, 2), Substring ("Puppy", 4, 2))
- 4. Multiple Choice
Which of the following are true statements about how the Internet enables crowdsourcing?
I. The Internet can provide crowdsourcing participants access to useful tools, information, and professional knowledge.
II. The speed and reach of the Internet can lower geographic barriers, allowing individuals from different locations to contribute to projects.
III. Using the Internet to distribute solutions across many users allows all computational problems to be solved in reasonable time, even for very large input sizes.
I and II only
I and III only
II and III only
I, II, and III
- 5. Multiple Choice
A media librarian at a movie studio is planning to save digital video files for archival purposes. The movie studio would like to be able to access full-quality videos if they are needed for future projects. Which of the following actions is LEAST likely to support the studio’s goal?
Using video file formats that conform to published standards and are supported across many different
devices
Using lossy compression software to reduce the size requirements of the data being stored
Using storage media that can be expanded for additional data capacity
Using a system that incorporates redundancy to handle disk failure
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